Thin-film transistor approaches for ultra-sensitive gas sensing technologies

Gas sensors are essential in environmental monitoring, industrial safety, and healthcare by enabling the detection of hazardous and flammable gases at trace levels. Conventional sensing approaches, including electrochemical, optical, catalytic, and thermal methods, though effective, suffer from limitations such as short operational life, high cost, poor selectivity, and bulkiness. This research investigates the design and manufacturing of TFT-based sensors using indium gallium zinc oxide (IGZO)